Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7487834 | Methods of using a laser to perforate composite structures of steel casing, cement and rocks | Zhiyue Xu | 2009-02-10 |
| 7416258 | Methods of using a laser to spall and drill holes in rocks | Zhiyue Xu, Richard A. Parker, Ramona M. Graves, Thomas W. Stone | 2008-08-26 |